The author argues that Rocq is a more suitable tool than Lean for program verification, particularly due to Rocq's direct support for executable coinductive types and cofixpoints. While Lean has introduced coinductive predicates, it lacks the ability to extract executable programs from them. A proof-of-concept package in Lean, QPFTypes, attempts to address this but has limitations in handling mutually coinductive declarations and indexed coinductive families, which are standard features in Rocq. AI
IMPACT This comparison of formal verification tools may influence how AI models are developed and validated.
RANK_REASON The item is a blog post comparing two software tools for program verification, offering an opinionated perspective rather than announcing a new release or research finding.
- Alex Keizer
- Joachim Breitner
- LangSec
- Lean
- Lean 4.25
- Lean 4.25.0
- Lean FRO
- QPFTypes
- Rocq prover
- Wojciech Różowski
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